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Total 19 documents matching your query.

1. Dry sump oiling HP gains (score: 1): Author: Askotto@aol.com; Date: Thu, 19 Oct 2006 13:37:46 EDT; OK Otto, Please explain to me how it is free HP when you trade one oil pump for three (or at least two) which take power to turn them and you add about 50 or 60 lbs to the car at least which takes po; /html/land-speed/2006-10/msg00367.html (8,793 bytes)
2. Re: Dry sump oiling HP gains (score: 1): Author: "Ed Weldon" <23.weldon@comcast.net>; Date: Thu, 19 Oct 2006 11:24:51 -0700; I wonder how much of that 20 hp is due to reduced churning of oil and how much is due to other things like lower pumping losses from the motion of the pistons. I doubt the extra hp to drive the scav; /html/land-speed/2006-10/msg00369.html (7,964 bytes)
3. RE: Dry sump oiling HP gains (score: 1): Author: "Dave Dahlgren" <ddahlgren@snet.net>; Date: Thu, 19 Oct 2006 15:43:32 -0400; For every piston going down there is another going up... Constant volume in the crankcase.. Dave; /html/land-speed/2006-10/msg00370.html (9,004 bytes)
4. RE: Dry sump oiling HP gains (score: 1): Author: "Clay, Dale" <Dale.Clay@mdhelicopters.com>; Date: Thu, 19 Oct 2006 12:51:34 -0700; Wouldn't that 15 inches work against the piston on the way to TDC? Dale C. Subject: Dry sump oiling HP gains The dry sump system on the other hand creates about 15 inches of vacuum in the crankcase.; /html/land-speed/2006-10/msg00371.html (8,046 bytes)
5. Re: Dry sump oiling HP gains (score: 1): Author: Askotto@aol.com; Date: Thu, 19 Oct 2006 17:03:04 EDT; For every piston going down there is another going up... Constant volume in the crankcase.. Dave Hi Dave So what you're saying is there is no pressure in the crankcase? Constant volume sure, you don'; /html/land-speed/2006-10/msg00373.html (8,292 bytes)
6. Re: Dry sump oiling HP gains (score: 1): Author: "joseph lance" <jolylance@earthlink.net>; Date: Thu, 19 Oct 2006 17:15:25 -0400; Yes, but you're still compressing and relaxing a pneumatic "spring" (the air in the crankcase) and creating an energy loss. Which means a little less horsepower Lance; /html/land-speed/2006-10/msg00374.html (8,450 bytes)
7. Re: Dry sump oiling HP gains (score: 1): Author: "Rich Fox" <v4gr@rcn.com>; Date: Thu, 19 Oct 2006 16:31:01 -0700; As long as there is pressure on the bottom of pistons going down, there will be exactly the same pressure pushing pistons on their way up. Has to be. I always thought (Without any real knowledge) the; /html/land-speed/2006-10/msg00375.html (9,533 bytes)
8. Re: Dry sump oiling HP gains (score: 1): Author: "Tom Bryant" <saltracer@awwwsome.com>; Date: Thu, 19 Oct 2006 16:54:19 -0700; the crank out of the oil.> That is my understanding as well, Rich. Dry sumps reduce the resistance to the rotating masses because of the oil in the cankcase. Windage trays help, but dry sump is the; /html/land-speed/2006-10/msg00377.html (8,293 bytes)
9. RE: Dry sump oiling HP gains (score: 1): Author: "Bow" <kd5kzn@sbcglobal.net>; Date: Fri, 20 Oct 2006 00:12:56 -0000; Me too Rich, Keep the oil off of the crank and the HP is freed up... Hence the use of crank scrappers and windage trays Makes sense to me... Bow --Original Message-- From: owner-land-speed@autox.team; /html/land-speed/2006-10/msg00378.html (8,938 bytes)
10. Re: Dry sump oiling HP gains (score: 1): Author: Askotto@aol.com; Date: Thu, 19 Oct 2006 20:27:43 EDT; Me too Rich, Keep the oil off of the crank and the HP is freed up... Hence the use of crank scrappers and windage trays Makes sense to me... Bow Well there you go! That's what I get for believing wha; /html/land-speed/2006-10/msg00379.html (8,482 bytes)
11. Re: Dry sump oiling HP gains (score: 1): Author: "Ed Weldon" <23.weldon@comcast.net>; Date: Thu, 19 Oct 2006 19:40:02 -0700; OK, so the only number we have is the 20hp test point. Here's a couple of engineering comments-- 1. The air pumping losses from the pistons may be more than you think. Let's assume they are just blow; /html/land-speed/2006-10/msg00380.html (10,266 bytes)
12. Re: Dry sump oiling HP gains (score: 1): Author: "J.D. Tone" <gmc6power@earthlink.net>; Date: Thu, 19 Oct 2006 20:03:38 -0700; I always felt the large gains were found at the highest RPM range. I have spoken to some who feel there is not much to be gained around 5000 rpm. Over the years I have played with oil pans because a; /html/land-speed/2006-10/msg00381.html (9,447 bytes)
13. Re: Dry sump oiling HP gains (score: 1): Author: "Ed Weldon" <23.weldon@comcast.net>; Date: Thu, 19 Oct 2006 20:35:59 -0700; JD-- If that 5mph increase was just from the crankcase evacuation then I'm really missing something here.......... Ed................still searching... didn't; /html/land-speed/2006-10/msg00383.html (8,796 bytes)
14. Re: Dry sump oiling HP gains (score: 1): Author: "Rich Fox" <v4gr@rcn.com>; Date: Thu, 19 Oct 2006 22:18:27 -0700; /html/land-speed/2006-10/msg00392.html (8,509 bytes)
15. RE: Dry sump oiling HP gains (score: 1): Author: "Freiburger, David" <David.Freiburger@primedia.com>; Date: Fri, 20 Oct 2006 00:38:38 -0500; Maybe I should tell you a little story about a mechanical fuel pump...or maybe I shouldn't... DF; /html/land-speed/2006-10/msg00395.html (8,960 bytes)
16. Re: Dry sump oiling HP gains (score: 1): Author: "Rich Fox" <v4gr@rcn.com>; Date: Thu, 19 Oct 2006 23:08:13 -0700; Hey I'd like to hear it. 5 mph on a smog pump is pretty interesting and then some, I think. I don't remember if the Ply has a fuel pump mount, but if it works anything like the smog pump I'll go look; /html/land-speed/2006-10/msg00396.html (9,394 bytes)
17. Dry sump oiling HP gains (score: 1): Author: "3 liter" <saltfever@comcast.net>; Date: Fri, 20 Oct 2006 01:38:09 -0700; Otto: I don't dispute the HP gains and I am a dry-sump proponent. However, me thinks your explanation needs more explaining. If one piston is being "sucked" down then its opposite twin (the piston th; /html/land-speed/2006-10/msg00398.html (9,175 bytes)
18. RE: Dry sump oiling HP gains (score: 1): Author: "Albaugh, Neil" <albaugh_neil@ti.com>; Date: Fri, 20 Oct 2006 10:59:34 -0500; True, most is gained by keeping the crank out of the oil but there are small pumping losses as air is pumped from one cylinder to another as pistons go up & down. On average the volume is constant b; /html/land-speed/2006-10/msg00403.html (9,043 bytes)
19. RE: Dry sump oiling HP gains (score: 1): Author: "John Staiger" <lsrvette@yahoo.com>; Date: Fri, 20 Oct 2006 12:01:38 -0400; Additional thoughts from an engineering point of view... I apologize if this has been discussed already -- however I did not see this thought covered in the emails I received. With reference to the e; /html/land-speed/2006-10/msg00404.html (9,276 bytes)

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